Populations at Grytviken and Husvic and Leith Harbour. (Floyd, K. (2013) Weeds on South Georgia. Government of South Georgia and the South Sandwich Islands.); Plants were sparsely distributed at Grytviken whaling station, being often isolated or in small clusters. Small populations at Huzvikand Leith sites. Two new sites were found in Stromness Bay, one on Pintail Penninsula and another in Husdal valley. (Government of South Georgia and the South Sandwich Islands (2015) Alien plants on South Georgia: Season Report 2014-2015. Government of South Georgia and the South Sandwich Islands.); Widespread naturalised. Although previous control is effective, small new sites continue to be found in the Stromness Bay area (eg along the river margins of the Husdal river and in Husvik whaling station along the river bank). Distribution in Stromness Bay is also larger than hoped. (Floyd, K. (2018) Non-native plants on South Georgia: Season Report 2017/18. Indigena Biosecurity International, Government of South Georgia and the South Sandwich Islands);
Hold Ctrl whilst dragging to view details of selected occurrences.
Terrestrial
Seeds spread via reindeer. (Government of South Georgia and the South Sandwich Islands (2015) Alien plants on South Georgia: Season Report 2014-2015. Government of South Georgia and the South Sandwich Islands.; Floyd, K. (2018) Non-native plants on South Georgia: Season Report 2017/18. Indigena Biosecurity International, Government of South Georgia and the South Sandwich Islands); In the Stromness Bay area (eg along the river margins of the Husdal river and in Husvik whaling station along the river bank) dispersal appears to have been by water-borne seed. (Floyd, K. (2018) Non-native plants on South Georgia: Season Report 2017/18. Indigena Biosecurity International, Government of South Georgia and the South Sandwich Islands);
James, R., Floyd, K., Pagad, S. & Wong, L.J. (2020) Global Register of Introduced and Invasive Species of South Georgia and the South Sandwich Islands. Version 1.4. Invasive Species Specialist Group ISSG. Checklist dataset; Greene, S.W. & Walton, D.W.H. (1975). An annotated checklist of the sub-Antarctic and Antarctic vascular flora, Polar Record, 17(110), pp. 473, 484.; Floyd, K. (2013) Weeds on South Georgia. Government of South Georgia and the South Sandwich Islands.;Government of South Georgia & the South Sandwich Islands (2016) South Georgia Non-Native Plant Management Strategy 2016-2020. Government House, Stanley, Falkland Islands.; Government of South Georgia and the South Sandwich Islands (2015) Alien plants on South Georgia: Season Report 2014-2015. Government of South Georgia and the South Sandwich Islands.; Floyd, K. (2018) Non-native plants on South Georgia: Season Report 2017/18. Indigena Biosecurity International, Government of South Georgia and the South Sandwich Islands;